CAJ | 학술논문

采用Rubotherm磁悬浮天平测量CH4、N2和CO2在沸石ZSM-5上的单组分吸附平衡等温线，温度273～353 K，压力0～500 kPa。采用Sips模型、Toth模型和MSL模型对单组分吸附平衡实验数据进行拟合，拟合结果良好，非线性回归得到相应的模型参数。测量双组分CO2/N2、CO2/CH4和CH4/N2在沸石ZSM-5上的竞争吸附平衡等温线，实验温度为293 K，实验压力为0～500 kPa。采用基于Sips模型的理想吸附溶液理论和双组分MSL模型预测双组分气体在沸石ZSM-5上的竞争吸附平衡等温线，并与实验结果进行比较，预测结果良好。比较CO2/N2、CO2/CH4以及 CH4/N2体系在沸石 ZSM-5上的竞争吸附选择性系数，探究沸石 ZSM-5吸附分离烟道气（CO2/N2体系）、垃圾填埋气（CO2/CH4体系）或煤层气（CH4/N2体系）的可行性，为将来进行工艺设计提供基础数据。
채용Rubotherm자현부천평측량CH4、N2화CO2재비석ZSM-5상적단조분흡부평형등온선，온도273～353 K，압력0～500 kPa。채용Sips모형、Toth모형화MSL모형대단조분흡부평형실험수거진행의합，의합결과량호，비선성회귀득도상응적모형삼수。측량쌍조분CO2/N2、CO2/CH4화CH4/N2재비석ZSM-5상적경쟁흡부평형등온선，실험온도위293 K，실험압력위0～500 kPa。채용기우Sips모형적이상흡부용액이론화쌍조분MSL모형예측쌍조분기체재비석ZSM-5상적경쟁흡부평형등온선，병여실험결과진행비교，예측결과량호。비교CO2/N2、CO2/CH4이급 CH4/N2체계재비석 ZSM-5상적경쟁흡부선택성계수，탐구비석 ZSM-5흡부분리연도기（CO2/N2체계）、랄급전매기（CO2/CH4체계）혹매층기（CH4/N2체계）적가행성，위장래진행공예설계제공기출수거。
Adsorption equilibrium isotherms of CH4, N2 and CO2 on zeolite ZSM-5 were measured by Rubotherm magnetic suspension balance in the pressure range of 0-500 kPa and the temperature range of 273-353 K. Sips model, Toth model and MSL model were used to fit the experimental data with acceptable accuracy, and the model parameters were obtained by the non-linear regression method. Binary adsorption isotherms of CO2/N2, CO2/CH4 and CH4/N2 were measured by the magnetic suspension balance with different compositions in the pressure range of 0-500 kPa at 293 K. The Sips model-based ideal adsorbed solution theory and two-component MSL model were used to simulate the competitive adsorption equilibrium isotherms of CO2/N2, CO2/CH4 and CH4/N2. Furthermore, the selectivity of CO2/N2, CO2/CH4 and CH4/N2 gas mixtures were calculated, and the feasibility of adsorption separation, using zeolite ZSM-5 as adsorbent to separate CO2 from flue gases (CO2/N2), CH4 from landfill gases (CO2/CH4) and coal mine gases (CH4/N2) was evaluated.